Automatic device for operating machine stoppers



March '22, 1932. F. PHILIP 1,850,084

AUTOMATIC DEVICE FOR OPERATING MACHINE sToPPEEs Filed July 19, 1930 Patented Mar. 22,. 1932 ,uNir o stars-s EN-r 01 FRANZ PHILIP, or BRONX, NEW,YORK:

AU'roMA'rIcnEvIoE ronornm'rmo MACHINE sTorPER-s Application filed July 19, 1930. SeriaYNO. 469,233.

i This invention relates to improvements in the devices for-automatically stoppingknitting machines or other thread or yarn using. machines as soon as the thread or yarn breaks,

slips oil its guidesor runs out altogether, and it is .the principal object of my invention to provide such a device with a stop lever suitably Weighted to suit the grade of the yarn which Will close a machine stopper circuit upon the breaking, slipping, or running out of the yarn or Which Will operate in this instance the lever of a mechanical machine stopper.

Another object of my invention is the provision of a housingwhich is either stationary or rotatably attached to the yarn stand of the machine and in the formercase contains a revolving disc provided with stop tongues in its periphery adapted to be arrestedby the engagement of the yarn guiding and Weighted lever, While in the latter case the disc is stationary and the engagement of the end of the Weighted Wire Will engage the tongues of the disc upon the breaking, slipping, or running out of the yarn to stop the revolution of the housing and to' close a cir cuit for'actuatingthe machine stopper.

It Will be clear that with my device I may use any well'known type of machine stopper either electrically or mechanically operated;

the specific construction of the stopper does not form part of my invention. 7

A further object of my invention is the provision of a spring controlled guide for the yarn :or thread, equipped With-means for adjusting the tension of the spring.

A still further'object of my invention is the provision of a stationary yarn guide, and a looped end Weighted 'Wire normally held in depressed position by the normally running yarn, however, raising under .its Weight as soon as the yarnbreaks,.slips, or runs out to operate the circuit closer of an electric machine stopper or the, lever of a mechanical machine stopper.

These and other objects and advantages of my device will become more fully known as. the description thereof proceeds v and will then be specifically defined in the appended claim.

fragmentary perspective 3 View of the thread controlled elementfor operating the machine stopper, during its normaloperation. Fig'. 5 is a vieu similar to Figure lillustrating the thread controlled element in -op-- erating position to actuate the m'achinestop per upon breaking, 'slipping ofi", or running out of the thread. a

As illustrated, a housing 10 which may be either stationary or rotating, forms part of the yarn stand on the machine, If the bollsinglO is revolving, it turns with'its bushing 11 on a ball'bearinglQ about a stationary spindle l3, Whichcarries-Within the housing a disc 1 l- With 7 a plurality of peripheral stop tongues 15. 7

In this instance air-electric cable 16 at ,tached tothe' stationary arm 13 leads to the f machine of anyw ell known constructionynoti switch controlling an: electric stopper of the forming part of this-invention, for closing' the stoppercircuit as soon as the yarn breaks as thehousing is grounded in the machine frame, and the stopperrelement engages be neaththe: tongues 15. r This stopper'elementis operated by the yarnlS When'broken, slipping oil: its guides orflrunni'ng out; The stopping element isconstructed ,as follovvs5TYarnl8 is guided over-a guide 19 at the outer end of a wire 20'passed intothe' interior of the casing '10: Where its .end is formed into a loop '21 to whi'ch -oneend of a spring 22 is attached, the otl1erend"of" which isattached toa 'hookf28at'the endof' ascre'W bolt 24 carrying a nut 25 to allow" an adjustmentot spring tension. 1

A stationary yarn-guid bracket 26 guides the yarn between. its lower fingers527, and a a Wire 28 has one oi -its ends fOrmedinto .a

yarn guide 29, while its other end is looped, as at 30, and carries at the apex of the loop a weight 31. The inner end of the looped wire is passed into the housing and while its end 31 remains during the normal operation of the machine above thetongues and disc 14, if however, the yarn breaks, slips off its guides or runs out altogether the lever 1 end will catch under the tongues 15, and will either rotate the disc or stop its rotation to operate a mechanical or electricallyoperated machine stopper as will hereafter be more fully described. c

The housing 10 is attached to the yarn stand and is normally turning therewith in its bushing 11', while disc '14 is stationary, as soon as the yarn breaks, the wire which has been held out of engagement with the disc by the yarn tension, drops and its end 31 en weight.

In a device of the class described a spring controlled movable yarn guide, a stationary yarn guide, and a wire loop having its outer end formed into a hook for guiding the yarn.

a weight at the apex of said loop normally balanced by the tension of the thread, a stopper tongued disc, a housing therefor, the inner end of said loop extending into said housing and to be kept above said disc during the normal operation of the machine for engagingsaid stop tongues upon the break ing of the yarn, under the influence of said Signed at NewYork, in the county of New York, and State of New York, this fifteenth day of July, A. D. 1930.

- FRANZ PHILIP.

gages beneath one of the tongues 15 of disc 14 and rotates the same as well as its spindle 13 which is connected with a movable member of the mechanical stopper (not shown as it forms no part of my invention, any form' of mechanical stopper may be used) and operates the same to stop the knitting machine.

Or, if an electric stopper is used, the movement of spindle 18 will close the stopper operating circuit. yarn stand is stationary, and the disc is rotating with any rotary part of the machine, the dropping of the wire upon the breaking of the yarn will engage its end 81 with the i fluence ofits weight willrise at the yarn guiding end whileits end 81 normally kept above disc lt will go down andengage beneath one or the other of tongues 15 to either arrest the rotation of the disc 14,, or if the same is stationary rotate the same, and in either case operate the mechanlcal stopper or close the stopper circuit, if an electrically operated stopper is used, as above described.

' that I may make such changes in its general- Itwill be 'understood that I have described and shown the preferred form of my device only, as one example of the many possible Ways to practically construct the same, and

arrangement and in the construction of its minor details 'as-come within the scope ot the appended claim without departure from my invention and the principles involved. Having thus described my invention what ters Patent is:

On the other hand if the [I claim as new and desire to secure by Let 7 ion 

